The Oa

Site of Special Scientific Interest · 55.6180, -6.2857

Condition (NatureScot)

Unfavourable Declining (1)
UnitFeatureConditionArea (ha)Assessed
F1 Chough (Pyrrhocorax pyrrhocorax), breeding Unfavourable Declining 2013-02-25

Climate exposure

This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.

Coastal

Coastal habitats are exposed to sea-level rise and storm erosion. Where hard sea defences sit behind them, there's nowhere landward to retreat to — a squeeze that keeps compressing the habitat no matter how well it's managed.

Geology & landscape

Landscape processes: Coastal

Description

The Oa The Oa SSSI lies on a peninsula of land approximately 7km to the west of Port Ellen on the Isle of Islay. The site comprises 2 sections with a coastal strip supporting cliffs, coastal grassland, dune grassland, coastal heath and improved grassland and an inland section supporting unimproved grassland and heathland. The site is of special importance for its breeding chough Pyrrhocorax pyrrhocorax, and is home to approximately 2.3% of the GB population. The chough breed mostly in caves on the coastal cliffs and feed mostly on invertebrates found on the grassland habitats.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
chough Pyrrhocorax pyrrhocorax VU (Breeding) bird-corvid corvidae

Plant communities

H1 — Lowland dry heath

Calluna vulgaris-Festuca ovina heath

Calluna vulgaris, Erica cinerea, Erica tetralix, Ulex europaeus, Carex arenaria, Dicranella heteromalla, Dicranum scoparium, Hylocomium splendens, Hypnum cupressiforme, Pleurozium schreberi, Pseudoscleropodium purum, Polytrichum juniperinum, Ptilidium ciliare, Hypogymnia physodes, Cladonia arbuscula, Cladonia coniocraea, Cladonia fimbriata, Cladonia furcata, Cladonia impexa, Cladonia macilenta, Cladonia pyxidata, Cladonia squamosa, Cladonia tenuis, Cladonia uncialis, Cornicularia aculeata, Jacobaea vulgaris, Campanula rotundifolia, Cerastium fontanum, Teucrium scorodonia, Rumex acetosella, Galium saxatile, Agrostis capillaris, Deschampsia flexuosa, Festuca ovina, Holcus lanatus, Pteridium aquilinum

H2 — Lowland dry heath

Calluna vulgaris-Ulex minor heath

Pinus sylvestris, Sorbus aucuparia, Calluna vulgaris, Erica cinerea, Erica tetralix, Vaccinium myrtillus, Ulex europaeus, Ulex gallii, Ulex minor, Campylopus flexuosus, Dicranum scoparium, Hypnum jutlandicum, Polytrichum juniperinum, Polytrichum piliferum, Kurzia spp., Cladonia arbuscula, Cladonia chlorophaea, Cladonia coccifera, Cladonia fimbriata, Cladonia furcata, Cladonia impexa, Cuscuta epithymum, Genista anglica, Potentilla erecta, Rubus fruticosus agg., Agrostis canina, Agrostis curtisii, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Molinia caerulea, Pteridium aquilinum

H3 — Lowland dry heath, Lowland wet heath

Ulex minor-Agrostis curtisii heath

Quercus robur, Calluna vulgaris, Erica ciliaris, Erica cinerea, Erica tetralix, Ulex europaeus, Ulex minor, Carex pilulifera, Schoenus nigricans, Campylopus brevipilus, Campylopus flexuosus, Leucobryum glaucum, Hypnum jutlandicum, Polytrichum juniperinum, Kurzia spp., Hypogymnia physodes, Cladonia arbuscula, Cladonia coccifera, Cladonia crispata, Cladonia floerkeana, Cladonia impexa, Cladonia pyxidata, Cladonia uncialis, Cuscuta epithymum, Hypericum pulchrum, Polygala serpyllifolia, Potentilla erecta, Viola lactea, Agrostis curtisii, Danthonia decumbens, Molinia caerulea, Pteridium aquilinum, Zygogonium ericetorum

H4 — Lowland dry heath, Lowland wet heath, Upland dry heath

Ulex gallii-Agrostis curtisii heath

Salix repens, Calluna vulgaris, Erica ciliaris, Erica cinerea, Erica tetralix, Erica vagans, Vaccinium myrtillus, Ulex gallii, Carex binervis, Carex flacca, Carex montana, Carex panicea, Carex pilulifera, Trichophorum cespitosum, Juncus squarrosus, Luzula multiflora, Pohlia nutans, Campylopus flexuosus, Campylopus introflexus, Dicranum scoparium, Leucobryum glaucum, Racomitrium lanuginosum, Hypnum cupressiforme, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Polytrichum juniperinum, Calypogeia fissa, Calypogeia muelleriana, Cephalozia bicuspidata, Diplophyllum albicans, Lophocolea bidentata, Hypogymnia physodes, Cladonia arbuscula, Cladonia chlorophaea, Cladonia coccifera, Cladonia crispata, Cladonia fimbriata, Cladonia floerkeana, Cladonia furcata, Cladonia impexa, Cladonia subcervicornis, Cladonia uncialis, Cuscuta epithymum, Lotus corniculatus, Thymus praecox, Pedicularis sylvatica, Polygala serpyllifolia, Polygala vulgaris, Potentilla erecta, Galium saxatile, Viola lactea, Agrostis canina, Agrostis capillaris, Agrostis curtisii, Anthoxanthum odoratum, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Molinia caerulea, Nardus stricta, Pteridium aquilinum

H7 — Hard cliff and cliff slope, Lowland dry heath

Calluna vulgaris-Scilla verna heath

Salix repens, Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica cinerea, Erica tetralix, Erica vagans, Juniperus communis, Ulex europaeus, Carex caryophyllea, Carex flacca, Carex nigra, Carex panicea, Carex pulicaris, Carex serotina, Luzula campestris, Luzula multiflora, Selaginella selaginoides, Hypnum cupressiforme, Frullania tamarisci, Cladonia chlorophaea, Cladonia rangiformis, Daucus carota, Achillea millefolium, Hypochaeris radicata, Leontodon saxatilis, Leucanthemum vulgare, Scorzoneroides autumnalis, Serratula tinctoria, Jasione montana, Succisa pratensis, Cerastium diffusum, Cerastium fontanum, Silene uniflora, Sedum anglicum, Anthyllis vulneraria, Astragalus danicus, Genista pilosa, Lotus corniculatus, Trifolium repens, Centaurium erythraea, Thymus praecox, Scilla verna, Dactylorhiza purpurella, Euphrasia officinalis, Plantago coronopus, Plantago lanceolata, Plantago maritima, Armeria maritima, Polygala serpyllifolia, Polygala vulgaris, Rumex acetosa, Primula vulgaris, Filipendula vulgaris, Potentilla erecta, Galium verum, Viola riviniana, Agrostis capillaris, Agrostis stolonifera, Aira caryophyllea, Aira praecox, Anthoxanthum odoratum, Dactylis glomerata, Danthonia decumbens, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Molinia caerulea, Nardus stricta, Chara curta

H8 — Hard cliff and cliff slope, Lowland dry heath, Upland dry heath

Calluna vulgaris-Ulex gallii heath

Calluna vulgaris, Erica cinerea, Erica tetralix, Vaccinium myrtillus, Ulex europaeus, Ulex gallii, Carex binervis, Carex caryophyllea, Carex flacca, Carex pilulifera, Campylopus flexuosus, Dicranum scoparium, Hypnum cupressiforme, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Polytrichum juniperinum, Polytrichum piliferum, Cladonia impexa, Cladonia squamosa, Hypochaeris radicata, Jasione montana, Lotus corniculatus, Hypericum pulchrum, Teucrium scorodonia, Thymus praecox, Scilla verna, Linum catharticum, Pedicularis sylvatica, Digitalis purpurea, Plantago lanceolata, Plantago maritima, Polygala serpyllifolia, Rumex acetosella, Potentilla erecta, Poterium sanguisorba, Rubus fruticosus agg., Galium saxatile, Galium verum, Viola lactea, Viola riviniana, Agrostis capillaris, Agrostis curtisii, Agrostis stolonifera, Agrostis vinealis, Aira praecox, Anthoxanthum odoratum, Avenula pubescens, Brachypodium sylvaticum, Dactylis glomerata, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Holcus lanatus, Molinia caerulea, Nardus stricta, Pteridium aquilinum, Chara curta

H11 — Lowland dry heath

Calluna vulgaris-Carex arenaria heath

Salix repens, Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica cinerea, Erica tetralix, Vaccinium myrtillus, Ulex gallii, Rosa spinosissima, Carex arenaria, Luzula campestris, Pohlia nutans, Campylopus introflexus, Ceratodon purpureus, Dicranum scoparium, Racomitrium canescens sens.lat., Hylocomium splendens, Hypnum jutlandicum, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus triquetrus, Polytrichum juniperinum, Polytrichum piliferum, Lophocolea bidentata, Ptilidium ciliare, Hypogymnia physodes, Cladonia arbuscula, Cladonia coccifera, Cladonia crispata, Cladonia floerkeana, Cladonia foliacea, Cladonia furcata, Cladonia gracilis, Cladonia impexa, Cladonia pyxidata, Cladonia rangiferina, Cladonia rangiformis, Cladonia subcervicornis, Cladonia uncialis, Cornicularia aculeata, Peltigera canina, Hypochaeris radicata, Jacobaea vulgaris, Pilosella officinarum, Teesdalia nudicaulis, Campanula rotundifolia, Jasione montana, Cerastium fontanum, Sedum anglicum, Lotus corniculatus, Ononis repens, Trifolium repens, Thymus praecox, Rumex acetosella, Potentilla erecta, Galium saxatile, Galium verum, Viola riviniana, Agrostis capillaris, Aira caryophyllea, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Deschampsia flexuosa, Festuca ovina, Poa pratensis

M14 — Lowland dry heath, Upland wet heath

Schoenus nigricans-Narthecium ossifragum mire

Pinus sylvestris, Calluna vulgaris, Erica tetralix, Myrica gale, Ulex gallii, Carex panicea, Eriophorum angustifolium, Rhynchospora alba, Schoenus nigricans, Eleocharis multicaulis, Juncus acutiflorus, Juncus bulbosus, Ctenidium molluscum, Hypnum jutlandicum, Scorpidium revolvens, Scorpidium scorpioides, Sphagnum auriculatum, Sphagnum palustre, Sphagnum papillosum, Sphagnum subnitens, Sphagnum tenellum, Calypogeia fissa, Kurzia pauciflora, Ordontoschisma sphagni, Aneura pinguis, Riccardia multifida, Drosera intermedia, Drosera rotundifolia, Pinguicula lusitanica, Narthecium ossifragum, Pedicularis sylvatica, Polygala serpyllifolia, Anagallis tenella, Potentilla erecta, Molinia caerulea

SD1 — Coastal vegetated shingle, Sand dune

Rumex crispus-Glaucium flavum shingle community

Solanum dulcamara, Crithmum maritimum, Cirsium arvense, Cirsium vulgare, Helminthotheca echioides, Hypochaeris radicata, Jacobaea vulgaris, Lactuca serriola, Leontodon saxatilis, Senecio viscosus, Sonchus arvensis, Sonchus asper, Tripleurospermum maritimum, Crambe maritima, Cerastium fontanum, Honckenya peploides, Sagina apetala, Silene uniflora, Atriplex prostrata, Sedum acre, Euphorbia paralias, Lathyrus japonicus, Geranium robertianum, Glaucium flavum, Plantago coronopus, Plantago lanceolata, Rumex crispus, Potentilla anserina, Ammophila arenaria, Arrhenatherum elatius, Elytrigia atherica, Elytrigia juncea, Festuca rubra, Holcus lanatus, Lolium perenne

SD2 — Coastal vegetated shingle, Sand dune

Honkenya peploides-Cakile maritima strandline community

Salsola kali, Achillea millefolium, Cirsium arvense, Eryngium maritimum, Hypochaeris radicata, Senecio vulgaris, Sonchus arvensis, Tripleurospermum maritimum, Cakile maritima, Cerastium diffusum, Honckenya peploides, Silene uniflora, Stellaria media agg., Atriplex glabriuscula, Atriplex laciniata, Atriplex littoralis, Atriplex patula, Atriplex prostrata, Sedum acre, Polygonum oxyspermum subsp. Raii, Rumex crispus, Potentilla anserina, Agrostis stolonifera, Ammophila arenaria, Arrhenatherum elatius, Elytrigia juncea, Elytrigia repens, Festuca rubra, Leymus arenarius, Poa annua

SD3 — Coastal vegetated shingle, Sand dune

Matricaria maritima-Galium aparine strandline community

Bolboschoenus maritimus, Juncus bufonius, Juncus gerardii, Ligusticum scoticum, Matricaria discoidea, Sonchus arvensis, Sonchus asper, Tripleurospermum maritimum, Mertensia maritima, Cakile maritima, Cochlearia officinalis, Honckenya peploides, Stellaria media agg., Atriplex glabriuscula, Atriplex patula, Atriplex prostrata, Triglochin maritimum, Plantago maritima, Armeria maritima, Rumex crispus, Glaux maritima, Galium aparine, Agrostis stolonifera, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Poa annua

SD4 — Sand dune

Elymus farctus ssp. boreali-atlanticus foredune community

Salsola kali, Artemisia maritima, Cirsium arvense, Cirsium vulgare, Eryngium maritimum, Hypochaeris radicata, Jacobaea vulgaris, Matricaria chamomilla, Senecio squalidus, Senecio vulgaris, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Tripleurospermum maritimum, Cakile maritima, Cerastium diffusum, Honckenya peploides, Atriplex glabriuscula, Atriplex laciniata, Atriplex prostrata, Euphorbia paralias, Polygonum oxyspermum subsp. Raii, Rumex crispus, Agrostis stolonifera, Ammophila arenaria, Elytrigia atherica, Elytrigia juncea, Festuca rubra, Leymus arenarius

SD5 — Sand dune

Leymus arenarius mobile dune community

Bryum algovicum, Ceratodon purpureus, Brachythecium rutabulum, Syntrichia ruraliformis, Cirsium arvense, Hypochaeris radicata, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Cakile maritima, Cerastium fontanum, Honckenya peploides, Atriplex glabriuscula, Atriplex prostrata, Chamerion angustifolium, Rumex crispus, Galium aparine, Ammophila arenaria, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Poa pratensis

SD6 — Sand dune

Ammophila arenaria mobile dune community

Lupinus arboreus, Carex arenaria, Ceratodon purpureus, Brachythecium albicans, Syntrichia ruraliformis, Angelica sylvestris, Heracleum sphondylium, Cirsium arvense, Cirsium vulgare, Eryngium maritimum, Hypochaeris radicata, Jacobaea vulgaris, Senecio squalidus, Senecio vulgaris, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Tussilago farfara, Cynoglossum officinale, Cakile maritima, Honckenya peploides, Atriplex glabriuscula, Atriplex laciniata, Calystegia soldanellla, Euphorbia paralias, Euphorbia portlandica, Trifolium arvense, Trifolium repens, Eriodium cicutarium, Chamerion angustifolium, Linaria vulgaris, Rumex crispus, Ranunculus repens, Rubus fruticosus agg., Galium verum, Urtica dioica, Agrostis capillaris, Agrostis stolonifera, Ammophila arenaria, Catapodium marinum, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Poa annua, Poa pratensis

SD7 — Sand dune

Ammophila arenaria-Festuca rubra semi-fixed dune community

Carex arenaria, Luzula campestris, Bryum argenteum, Bryum capillare, Ceratodon purpureus, Dicranum scoparium, Brachythecium albicans, Brachythecium rutabulum, Homalothecium lutescens, Hypnum cupressiforme, Kindbergia praelonga, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Syntrichia ruraliformis, Tortella flavovirens, Lophocolea bidentata, Cladonia fimbriata, Cladonia furcata, Cladonia impexa, Cladonia pyxidata, Cladonia rangiformis, Peltigera canina, Peltigera rufescens, Heracleum sphondylium, Achillea millefolium, Centaurea nigra, Cirsium arvense, Cirsium vulgare, Crepis capillaris, Eryngium maritimum, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Leontodon saxatilis, Pilosella officinarum, Scorzoneroides autumnalis, Senecio vulgaris, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Tragopogon pratensis, Tussilago farfara, Myosotis ramosissima, Erophila verna, Campanula rotundifolia, Valerianella locusta, Arenaria serpyllifolia, Cerastium diffusum, Cerastium fontanum, Cerastium semidecandrum, Calystegia soldanellla, Sedum acre, Euphorbia paralias, Euphorbia portlandica, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Trifolium arvense, Trifolium campestre, Trifolium repens, Vicia lathyroides, Vicia sativa, Centaurium erythraea, Eriodium cicutarium, Thymus praecox, Linum catharticum, Chamerion angustifolium, Rhinanthus minor, Plantago coronopus, Plantago lanceolata, Veronica arvensis, Veronica chamaedrys, Rumex crispus, Ranunculus bulbosus, Ranunculus repens, Acaena novae-zelandiae, Rubus caesius, Rubus fruticosus agg., Galium verum, Viola canina, Viola riviniana, Viola tricolor, Agrostis capillaris, Aira praecox, Ammophila arenaria, Arrhenatherum elatius, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Phleum arenarium, Poa pratensis

SD8 — Machair sand dune, Sand dune

Festuca rubra-Galium verum fixed dune grassland

Salix repens, Rosa spinosissima, Carex arenaria, Carex caryophyllea, Carex flacca, Luzula campestris, Plagiomnium rostratum, Plagiomnium undulatum, Ditrichum flexicaule, Brachythecium albicans, Calliergonell cuspidatum, Climacium dendroides, Entodon concinnus, Homalothecium lutescens, Hylocomium splendens, Hypnum cupressiforme, Kindbergia praelonga, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Thuidium delicatulum, Thuidium tamariscinum, Syntrichia ruraliformis, Lophocolea bidentata, Cladonia rangiformis, Odontites verna, Peltigera canina, Peltigera rufescens, Angelica sylvestris, Daucus carota, Heracleum sphondylium, Achillea millefolium, Bellis perennis, Centaurea nigra, Cirsium arvense, Cirsium vulgare, Crepis capillaris, Hypochaeris radicata, Jacobaea vulgaris, Leucanthemum vulgare, Pilosella officinarum, Scorzoneroides autumnalis, Sonchus oleraceus, Taraxacum officianalis, Myosotis arvensis, Myosotis ramosissima, Campanula rotundifolia, Succisa pratensis, Cerastium arvense, Cerastium diffusum, Cerastium fontanum, Cerastium semidecandrum, Sedum acre, Equisetum arvense, Anthyllis vulneraria, Astragalus danicus, Lotus corniculatus, Medicago lupulina, Ononis repens, Trifolium campestre, Trifolium pratense, Trifolium repens, Vicia cracca, Vicia lathyroides, Gentianella amarella, Eriodium cicutarium, Thymus praecox, Linum catharticum, Dactylorhiza viridis, Neottia ovata, Euphrasia officinalis, Rhinanthus minor, Plantago coronopus, Plantago lanceolata, Plantago major, Plantago maritima, Veronica arvensis, Veronica chamaedrys, Polygala vulgaris, Rumex acetosa, Rumex acetosella, Primula veris, Primula vulgaris, Ranunculus acris, Ranunculus bulbosus, Ranunculus repens, Thalictrum minus, Potentilla anserina, Galium verum, Viola riviniana, Viola tricolor, Agrostis capillaris, Agrostis stolonifera, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Arrhenatherum elatius, Avenula pubescens, Cynosurus cristatus, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Leymus arenarius, Lolium perenne, Poa pratensis, Poa trivialis, Trisetum flavescens

SD9 — Sand dune

Ammophila arenaria-Arrhenatherum elatius dune grassland

Rosa spinosissima, Carex arenaria, Carex flacca, Luzula campestris, Brachythecium rutabulum, Hypnum cupressiforme, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Syntrichia ruraliformis, Heracleum sphondylium, Pimpinella saxifraga, Torilis japonica, Achillea millefolium, Bellis perennis, Centaurea nigra, Cirsium arvense, Crepis capillaris, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Pilosella officinarum, Taraxacum officianalis, Myosotis arvensis, Campanula rotundifolia, Cerastium fontanum, Silene latifolia, Equisetum arvense, Astragalus danicus, Lathyrus pratensis, Lotus corniculatus, Ononis repens, Trifolium repens, Vicia sativa, Geranium sanguineum, Thymus praecox, Plantago lanceolata, Veronica chamaedrys, Rumex acetosa, Primula veris, Ranunculus bulbosus, Thalictrum minus, Fragaria vesca, Potentilla reptans, Poterium sanguisorba, Cruciata laevipes, Galium verum, Viola riviniana, Agrostis capillaris, Ammophila arenaria, Anthoxanthum odoratum, Arrhenatherum elatius, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Koeleria macrantha, Leymus arenarius, Poa pratensis, Trisetum flavescens, Pteridium aquilinum

SD10 — Sand dune

Carex arenaria dune community

Carex arenaria, Ceratodon purpureus, Hypnum cupressiforme, Achillea millefolium, Jacobaea vulgaris, Senecio vulgaris, Taraxacum officianalis, Tripleurospermum maritimum, Cerastium fontanum, Honckenya peploides, Astragalus danicus, Chamerion angustifolium, Plantago lanceolata, Rumex acetosella, Potentilla anserina, Galium verum, Agrostis capillaris, Aira praecox, Ammophila arenaria, Dactylis glomerata, Elytrigia juncea, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha

SD11 — Sand dune

Carex arenaria-Cornicularia aculeata dune community

Calluna vulgaris, Carex arenaria, Luzula campestris, Ceratodon purpureus, Dicranum scoparium, Racomitrium canescens sens.lat., Brachythecium albicans, Hypnum cupressiforme, Rhytidium rugosum, Polytrichum juniperinum, Polytrichum piliferum, Syntrichia ruraliformis, Ptilidium ciliare, Hypogymnia physodes, Cladonia arbuscula, Cladonia coccifera, Cladonia fimbriata, Cladonia foliacea, Cladonia furcata, Cladonia gracilis, Cladonia impexa, Cladonia pyxidata, Cladonia rangiferina, Cladonia rangiformis, Cladonia squamosa, Cladonia tenuis, Cladonia uncialis, Cornicularia aculeata, Hypochaeris radicata, Jacobaea vulgaris, Logfia minima, Teesdalia nudicaulis, Campanula rotundifolia, Sedum acre, Astragalus danicus, Eriodium cicutarium, Thymus praecox, Plantago lanceolata, Rumex acetosella, Galium saxatile, Galium verum, Viola canina, Viola tricolor, Agrostis capillaris, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Corynephorus canescens, Festuca ovina, Festuca rubra, Phleum arenarium

SD12 — Sand dune

Carex arenaria-Festuca ovina-Agrostis capillaris dune grassland

Calluna vulgaris, Erica cinerea, Carex arenaria, Carex pilulifera, Luzula campestris, Ceratodon purpureus, Dicranum scoparium, Brachythecium albicans, Hylocomium splendens, Hypnum cupressiforme, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Polytrichum juniperinum, Cladonia arbuscula, Cladonia furcata, Peltigera canina, Achillea millefolium, Cirsium arvense, Hypochaeris radicata, Jacobaea vulgaris, Pilosella officinarum, Campanula rotundifolia, Cerastium diffusum, Cerastium fontanum, Astragalus danicus, Lathyrus pratensis, Lotus corniculatus, Ononis repens, Trifolium repens, Vicia lathyroides, Geranium molle, Thymus praecox, Plantago lanceolata, Veronica officinalis, Rumex acetosa, Rumex acetosella, Primula vulgaris, Ranunculus repens, Potentilla erecta, Galium saxatile, Galium verum, Urtica dioica, Viola riviniana, Agrostis capillaris, Ammophila arenaria, Anthoxanthum odoratum, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Poa pratensis

SD13 — Dune slack, Sand dune

Sagina nodosa-Bryum pseudotriquetrum dune-slack community

Salix repens, Hippophae rhamnoides, Carex arenaria, Carex flacca, Carex serotina, Juncus articulatus, Bryum pseudotriquetrum, Amblystegium serpens, Didymodon tophaceus, Moerckia hibernica, Aneura pinguis, Pellia endiviifolia, Petalophyllum ralfsii, Hydrocotyle vulgaris, Jacobaea vulgaris, Leontodon hispidus, Pilosella officinarum, Pulicaria dysenterica, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Arenaria serpyllifolia, Cerastium fontanum, Sagina nodosa, Equisetum palustre, Equisetum variegatum, Pyrola rotundifolia, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Blackstonia perfoliata, Centaurium erythraea, Mentha aquatica, Epilobium palustre, Dactylorhiza incarnata, Epipactis palustris, Euphrasia officinalis, Polygala vulgaris, Primula vulgaris, Samolus valerandi, Rubus caesius, Galium verum, Agrostis stolonifera, Ammophila arenaria, Festuca rubra, Holcus lanatus, Phragmites australis, Poa annua, Poa pratensis

SD14 — Dune slack, Sand dune

Salix repens-Campylium stellatum dune-slack community

Salix caprea, Salix repens, Hippophae rhamnoides, Carex arenaria, Carex caryophyllea, Carex demissa, Carex flacca, Carex hirta, Carex hostiana, Carex nigra, Carex panicea, Carex serotina, Cladium mariscus, Eleocharis palustris, Eleocharis quinqueflora, Juncus acutus, Juncus articulatus, Juncus gerardii, Juncus inflexus, Juncus maritimus, Bryum pseudotriquetrum, Brachythecium rutabulum, Calliergonell cuspidatum, Drepanocladus aduncus, Drepanocladus sendtneri, Kindbergia praelonga, Pseudocalliergon lycopodioides, Pseudoscleropodium purum, Leiocolea badensis, Lophocolea bidentata, Moerckia hibernica, Preissia quadrata, Aneura pinguis, Pellia endiviifolia, Riccardia chamedryfolia, Angelica sylvestris, Oenanthe lachenalii, Hydrocotyle vulgaris, Bellis perennis, Eupatorium cannabinum, Jacobaea erucifolia, Jacobaea vulgaris, Leontodon hispidus, Leontodon saxatilis, Pulicaria dysenterica, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Succisa pratensis, Sagina nodosa, Parnassia palustris, Equisetum arvense, Equisetum fluviatile, Equisetum palustre, Equisetum variegatum, Pyrola rotundifolia, Anthyllis vulneraria, Lotus corniculatus, Lotus pedunculatus, Trifolium fragiferum, Trifolium pratense, Trifolium repens, Blackstonia perfoliata, Centaurium pulchellum, Gentianella amarella, Lycopus europaeus, Mentha aquatica, Linum catharticum, Epilobium parviflorum, Dactylorhiza incarnata, Dactylorhiza praetermissa, Dactylorhiza purpurella, Epipactis palustris, Gymnadenia conopsea, Liparis loeselii, Euphrasia officinalis, Rhinanthus minor, Plantago coronopus, Plantago lanceolata, Plantago major, Polygala vulgaris, Anagallis tenella, Glaux maritima, Primula vulgaris, Samolus valerandi, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Fragaria vesca, Potentilla anserina, Rubus caesius, Galium palustre, Viola riviniana, Agrostis stolonifera, Anthoxanthum odoratum, Briza media, Danthonia decumbens, Festuca rubra, Holcus lanatus, Phragmites australis, Poa pratensis, Ophioglossum vulgatum

SD15 — Dune slack, Sand dune

Salix repens-Calliergon cuspidatum dune-slack community

Salix caprea, Salix repens, Solanum dulcamara, Bolboschoenus maritimus, Carex arenaria, Carex flacca, Carex hirta, Carex nigra, Carex panicea, Cladium mariscus, Eriophorum angustifolium, Eleocharis palustris, Juncus acutus, Juncus articulatus, Juncus inflexus, Juncus maritimus, Juncus subnodulosus, Brachythecium mildeanum, Calliergonell cuspidatum, Drepanocladus sendtneri, Homalothecium lutescens, Kindbergia praelonga, Pseudocalliergon lycopodioides, Pseudoscleropodium purum, Lophocolea bidentata, Angelica sylvestris, Oenanthe lachenalii, Hydrocotyle vulgaris, Caltha palustris, Centaurea nigra, Cirsium arvense, Cirsium palustre, Eupatorium cannabinum, Jacobaea vulgaris, Pulicaria dysenterica, Scorzoneroides autumnalis, Cardamine pratensis, Succisa pratensis, Silene flos-cuculi, Parnassia palustris, Equisetum arvense, Equisetum fluviatile, Equisetum palustre, Equisetum variegatum, Lathyrus pratensis, Lotus corniculatus, Lotus pedunculatus, Trifolium pratense, Trifolium repens, Vicia cracca, Vicia sativa, Iris pseudacorus, Glechoma hederacea, Lycopus europaeus, Mentha aquatica, Linum catharticum, Lythrum salicaria, Epilobium palustre, Epilobium parviflorum, Dactylorhiza incarnata, Dactylorhiza praetermissa, Epipactis palustris, Plantago lanceolata, Anagallis tenella, Glaux maritima, Lysimachia vulgaris, Primula vulgaris, Samolus valerandi, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Agrimonia eupatoria, Filipendula ulmaria, Potentilla anserina, Potentilla reptans, Rubus caesius, Galium palustre, Scutellaria galericulata, Agrostis canina, Agrostis capillaris, Agrostis stolonifera, Arrhenatherum elatius, Danthonia decumbens, Festuca rubra, Holcus lanatus, Molinia caerulea, Phragmites australis, Poa pratensis, Ophioglossum vulgatum

SD16 — Dune slack, Sand dune

Salix repens-Holcus lanatus dune-slack community

Salix caprea, Salix repens, Betula pubescens, Quercus robur, Carex arenaria, Carex flacca, Carex nigra, Carex serotina, Eleocharis quinqueflora, Juncus acutus, Juncus articulatus, Juncus inflexus, Juncus maritimus, Luzula campestris, Bryum pseudotriquetrum, Amblystegium serpens, Brachythecium albicans, Brachythecium rutabulum, Calliergonell cuspidatum, Hypnum cupressiforme, Kindbergia praelonga, Pseudoscleropodium purum, Syntrichia ruraliformis, Lophocolea bidentata, Moerckia hibernica, Pellia endiviifolia, Petalophyllum ralfsii, Riccardia chamedryfolia, Hydrocotyle vulgaris, Bellis perennis, Carlina vulgaris, Cirsium arvense, Crepis capillaris, Erigeron acris, Eupatorium cannabinum, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Leontodon saxatilis, Pilosella officinarum, Pulicaria dysenterica, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Cerastium fontanum, Sagina nodosa, Parnassia palustris, Equisetum arvense, Equisetum palustre, Equisetum variegatum, Pyrola rotundifolia, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Trifolium dubium, Trifolium pratense, Trifolium repens, Gentianella amarella, Mentha aquatica, Thymus praecox, Linum catharticum, Epilobium palustre, Dactylorhiza incarnata, Epipactis helleborine, Epipactis palustris, Euphrasia officinalis, Rhinanthus minor, Plantago lanceolata, Anagallis tenella, Primula vulgaris, Samolus valerandi, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Fragaria vesca, Potentilla anserina, Rubus caesius, Galium verum, Viola riviniana, Agrostis capillaris, Agrostis stolonifera, Ammophila arenaria, Cynosurus cristatus, Festuca rubra, Holcus lanatus, Phragmites australis, Poa annua, Poa pratensis

SD17 — Dune slack, Sand dune

Potentilla anserina-Carex nigra dune-slack community

Salix caprea, Salix repens, Carex arenaria, Carex disticha, Carex flacca, Carex nigra, Carex panicea, Eriophorum angustifolium, Eleocharis palustris, Juncus acutiflorus, Juncus articulatus, Juncus bufonius, Juncus effusus, Juncus inflexus, Plagiomnium rostratum, Brachythecium rutabulum, Calliergonell cuspidatum, Cratoneuron filicinum, Drepanocladus aduncus, Drepanocladus sendtneri, Homalothecium lutescens, Kindbergia praelonga, Rhytidiadelphus squarrosus, Lophocolea bidentata, Odontites verna, Angelica sylvestris, Hydrocotyle vulgaris, Bellis perennis, Caltha palustris, Centaurea nigra, Scorzoneroides autumnalis, Taraxacum officianalis, Myosotis laxa, Cardamine pratensis, Cerastium fontanum, Sagina procumbens, Silene flos-cuculi, Parnassia palustris, Equisetum arvense, Equisetum fluviatile, Equisetum palustre, Equisetum variegatum, Lathyrus pratensis, Lotus corniculatus, Trifolium repens, Vicia cracca, Iris pseudacorus, Triglochin maritimum, Mentha aquatica, Linum catharticum, Epilobium palustre, Dactylorhiza fuchsii, Dactylorhiza incarnata, Dactylorhiza purpurella, Epipactis palustris, Euphrasia officinalis, Pedicularis palustris, Rhinanthus minor, Plantago lanceolata, Plantago maritima, Persicaria maculosa, Rumex acetosa, Rumex crispus, Glaux maritima, Primula vulgaris, Ranunculus flammula, Ranunculus repens, Comarum palustre, Filipendula ulmaria, Potentilla anserina, Rubus caesius, Galium palustre, Galium verum, Agrostis capillaris, Agrostis stolonifera, Alopecurus geniculatus, Anthoxanthum odoratum, Cynosurus cristatus, Elytrigia repens, Festuca rubra, Holcus lanatus, Lolium perenne, Poa annua, Poa pratensis, Poa trivialis

SD18 — Sand dune

Hippophae rhamnoides dune scrub

Salix repens, Sambucus nigra, Hippophae rhamnoides, Crataegus monogyna, Solanum dulcamara, Carex arenaria, Ceratodon purpureus, Brachythecium albicans, Brachythecium rutabulum, Kindbergia praelonga, Cladonia fimbriata, Cladonia furcata, Daucus carota, Heracleum sphondylium, Achillea millefolium, Cirsium arvense, Cirsium vulgare, Hypochaeris radicata, Jacobaea vulgaris, Leontodon saxatilis, Sonchus arvensis, Taraxacum officianalis, Cynoglossum officinale, Diplotaxis tenuifolia, Cerastium diffusum, Cerastium semidecandrum, Honckenya peploides, Sagina procumbens, Stellaria media agg., Calystegia soldanellla, Convolvulus arvensis, Lotus corniculatus, Ononis repens, Glechoma hederacea, Montia perfoliata, Chamerion angustifolium, Anacamptis pyramidalis, Plantago lanceolata, Rubus caesius, Rubus fruticosus agg., Galium aparine, Galium verum, Urtica dioica, Agrostis stolonifera, Aira praecox, Ammophila arenaria, Arrhenatherum elatius, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Festuca rubra, Holcus lanatus, Leymus arenarius, Phleum arenarium, Phragmites australis, Poa pratensis, Poa trivialis

SD19 — Sand dune

Phleum arenarium-Arenaria serpyllifolia dune annual community

Carex arenaria, Luzula campestris, Brachythecium albicans, Homalothecium lutescens, Hypnum cupressiforme, Syntrichia ruraliformis, Tortella flavovirens, Tortella tortuosa, Peltigera canina, Cirsium arvense, Crepis capillaris, Hypochaeris glabra, Jacobaea vulgaris, Logfia minima, Erophila verna, Arenaria serpyllifolia, Cerastium diffusum, Cerastium semidecandrum, Sedum acre, Euphorbia paralias, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Trifolium arvense, Trifolium campestre, Trifolium dubium, Trifolium repens, Centaurium erythraea, Eriodium cicutarium, Geranium molle, Thymus praecox, Plantago coronopus, Plantago lanceolata, Galium verum, Viola tricolor, Aira caryophyllea, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Catapodium marinum, Festuca rubra, Mibora minima, Phleum arenarium, Poa pratensis, Vulpia fasciculata